ContentsUNIT 1 The Challenge of the Channel 1
UNIT 2 Canadians Discover‘Planets’Beyond Our Solar System 9
UNIT 3 The Essence of Progressive Education Mutual Respect 15
UNIT 4 Worries On Ozon Threaten to Can CFCs 22
UNIT 5 The Greatness of Albert Einstein 28
UNIT 6 Of Dinosaurs，Bunyips and Yeti 35
UNIT 7 The Underground Shelters 41
UNIT 8 On Not Knowing English 47
UNIT 9 Gansu，a Wonder in China 54
UNIT 10 On the Amazon 61
UNIT 11 Wildlife 68
UNIT 12 The Stranger's Gaze 75